size of gallium is less than aluminium due to d-orbitals,but why so?

2 years ago

Share

Answers : (1)

                                        

Hi Ranjita,


 


The atomic radius of the Ga is less than Al because of poor screening effect.


The atomic radius of Ga is slightly lesser than of Al because in going from Al to Ga, the electrons have already occupied 3d sub shell in Ga. The screening effect of these intervening electrons being poor, has less influence to decrease the effective nuclear charge, therefore the electrons in Ga experience more forces of attractions towards nucleus to result in lower size of Ga than Al.


 


Regards,


Ashwin (IIT Madras).



2 years ago

Post Your Answer

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
what is the MO of NO2
 
 
molecular orbital for NO2 number of valence electron of NO2 =5 for nitrogen and 6 for each oxygen atom.So total valence electron=5+6*2=17 valence electron sigma(2), sigma(2),...
  img
Sunil Kumar FP 14 days ago
May I know the techniques of drawing the lewis structure?
 
 
Lewis dot structures shows how the bonding occurs in simple molecules and polyatomic ions in terms of shared e- pairs.Basic steps for writing lewis dot stuctures are as follows:- 1.Add the...
  img
Aarti Gupta one month ago
The ratio of walength of photon corresponding to the “x” line of Lyman series in H-atom and “y” line of Baler series in He+ is 1:1 1:2 1:4 3:16
 
 
the wavelength of any line of lyman series is given by = and that of balmer series is [\lambda] is the wavelength. Bis a constant with the value of 3.6450682×10-7m or 364.50682 nm. mis...
  img
Sunil Kumar FP one month ago
in exams so many times it is asked that what is the dipole moment of dis n dis compond or 1.64 or anythng else is d dipole moment of which element...how dis will b calculted....
 
 
Please ask a particular question we will help you , i am not able to understand your quetstion completely what you want to ask, please ask the direct question.
  img
Sher Mohammad 2 months ago
 
Write the formula for dipole moments on your paper: |m| = d * R. In this formula, |m| stands for the absolute value of the dipole moment, meaning you will express the dipole moment as a...
 
dfdffdfddffd 2 months ago
Question attached in image . (Q22)
 
 
Since the number of activated molecules increases with the increase in temperature the number of effective collisions also increases with the rise in temperature and this increases the rate...
  img
Sunil Kumar FP 2 months ago
View all Questions »